package me.yangteng.zhihudaily.activity;

import android.content.Intent;
import android.os.Bundle;

import android.support.v4.app.FragmentTransaction;
import android.util.Log;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;

import me.yangteng.zhihudaily.R;
import me.yangteng.zhihudaily.fragment.IndexPageFragment;
import me.yangteng.zhihudaily.util.LocalStoryLoader;

public class MainActivity extends AppCompatActivity
  implements NavigationView.OnNavigationItemSelectedListener {

  private static final String TAG = "MainActivity";

  private IndexPageFragment indexPageFragment;
  private LocalStoryLoader localStoryLoader;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
      this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    drawer.addDrawerListener(toggle);
    toggle.syncState();

    NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
    navigationView.setNavigationItemSelectedListener(this);
    localStoryLoader = new LocalStoryLoader(getApplicationContext());
    createFragment();
    initFragment();
  }

  @Override
  public void onBackPressed() {
    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    if (drawer.isDrawerOpen(GravityCompat.START)) {
      drawer.closeDrawer(GravityCompat.START);
    } else {
      super.onBackPressed();
    }
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_exit) {
      finish();
    } else if (id == R.id.action_settings) {
      Intent intent = new Intent();
      intent.setClass(getApplicationContext(), SettingsActivity.class);
      this.startActivity(intent);
    }

    return super.onOptionsItemSelected(item);
  }

  @SuppressWarnings("StatementWithEmptyBody")
  @Override
  public boolean onNavigationItemSelected(MenuItem item) {
    // Handle navigation view item clicks here.
    int id = item.getItemId();

    switch (id) {
      case R.id.nav_clear: {
        localStoryLoader.clear();
      }
      default:
    }

    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    drawer.closeDrawer(GravityCompat.START);
    return true;
  }

  public void createFragment() {
    Log.d(TAG, "Create fragment");
    indexPageFragment = new IndexPageFragment();
  }

  public void initFragment() {
    Log.d(TAG, "Init fragment");

    FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
    transaction.add(R.id.main_content_frame, indexPageFragment);
    transaction.commit();
  }
}
